Chesterfield Water Hardness & Quality Report (2026)
Water Hardness
11.8°Clark16.8°fH9.4°dH
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
271.6 mg/L
Est. Daily Cost
£0.38
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–99
mg/L
Soft
100–149
mg/L
Slightly Hard
150–199
mg/L
Moderately Hard
200–300
mg/L
Hard
300+
mg/L
Very Hard
Appliance Damage Report
In Chesterfield, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Chesterfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 9.4 yrs | 12 yrs | -22% |
| Water Heater | 11.7 yrs | 15 yrs | -22% |
Regional Water Comparison
How Chesterfield compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Chesterfield, East Midlands | 167.5 mg/L | 11.8° | 🟡 Moderately Hard | mixed |
| Staveley, East Midlands | ≈ 0–100 mg/L | 9° | 🟢 Soft | mixed |
| Dronfield, East Midlands | ≈ 200–300 mg/L | 12.8° | 🟠 Hard | mixed |
| Beighton, Yorkshire and the Humber | ≈ 200–300 mg/L | 12.5° | 🟠 Hard | mixed |
| Bolsover, East Midlands | ≈ 200–300 mg/L | 9.9° | 🟠 Hard | mixed |
National Benchmark
How Chesterfield compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Chesterfield | 167.5 mg/L | 🟡 Moderate |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Chesterfield's Water Unique?
Local geology and source profile
Chesterfield is supplied by Severn Trent Water, a major utility operating across the East Midlands. The company sources its water from a mix of surface water bodies like rivers and reservoirs, as well as underground aquifers. While specific treatment facilities and reservoir names for Chesterfield aren't detailed here, the East Midlands watershed is known for its underlying Carboniferous limestone and sandstone geology.
This geological makeup is key to the water's character. As water filters through these mineral-rich rock layers, it picks up dissolved calcium and magnesium. This natural process results in a moderately hard to hard water supply, with the limestone formations being the main influence on the water's mineral content.
Homeowners in Chesterfield might notice limescale forming in appliances like kettles and showers, and it can affect heating systems too. Over time, this scale can reduce the efficiency of dishwashers and washing machines. To combat scale buildup and help your appliances last longer, regular descaling is a good idea, and many households opt for a water softener. For the most precise information on your local water quality, including details on pH and chlorine, Severn Trent Water offers an online checker.
Geology & Source: Carboniferous limestone and sandstone; dissolution of calcium and magnesium causes moderate to hard water
Other East Midlands Water Reports
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